{"product_id":"crankcase-assembly-with-3-1-2in-bore-black-fits-big-twin-1984-1991","title":"Crankcase Assembly with 3-1\/2in. Bore - Black. Fits Big Twin 1984-1991.","description":"\u003cp\u003eFeatures \u0026amp; Benefits:-\u003c\/p\u003e\n\u003cp\u003e* Wrinkle Black.\u003c\/p\u003e\n\u003cp\u003e* Perfect for stock replacement \u0026amp; high performance applications\u003c\/p\u003e\n\u003cp\u003e* These crankcases offer some unique features. \u003c\/p\u003e\n\u003cp\u003e* Besides being machined for a crank position sensor, they are also compatible with stock flywheel assemblies, primary covers, gearcovers and are clearanced for 38 amp alternator stators.\u003c\/p\u003e\n\u003cp\u003e* Relocated cam chest oil pick-up increases gear case scavenging \u0026amp; virtually eliminates oil carry-over at sustained high speeds.\u003c\/p\u003e\n\u003cp\u003e* Machined to accept the stock oil filter assembly used on Big Twins 1984–1991.\u003c\/p\u003e\n\u003cp\u003e* A ported breather passage way \u0026amp; a machined breather window allows the air\/oil mist to flow from the flywheel cavity to the cam chest of the engine with the least possible restriction.\u003c\/p\u003e\n\u003cp\u003e* Crankcase venting can be achieved via two crankcase breathers, the cylinder heads, or both. \u003c\/p\u003e\n\u003cp\u003e* We recommend using both crankcase breathers in engines larger than 95ci.\u003c\/p\u003e\n\u003cp\u003e* Clearanced for strokes as long as 5\"\u003c\/p\u003e\n\u003cp\u003e* Compatible with stock 1984-1999 flywheel assemblies, primary covers, gearcovers, and clearanced for 38 amp alternator stators, making them perfect for stock replacement or high performance applications.\u003c\/p\u003e\n\u003cp\u003e* Machined for installation of a crank position sensor. \u003c\/p\u003e\n\u003cp\u003e* This allows the cases to be used in stock EFI applications \u0026amp; also allows easy installation of S\u0026amp;S IST Ignition \u0026amp; VFI Fuel Injection. \u003c\/p\u003e\n\u003cp\u003e* A plug kit is included for applications that do not use a crank position sensor\u003c\/p\u003e\n\u003cp\u003e* Upgrade on OEM # 24469-83 \/ 24473-83 \/ 24473-85\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* S\u0026amp;S Crankcase # SS31-0052 directly replaces H-D # 34473-85A.\u003c\/p\u003e\n\u003cp\u003e* Use 1984-1991 style oil pump.\u003c\/p\u003e\n\u003cp\u003e* Machined for 1984-1999 alloy primary.\u003c\/p\u003e\n\u003cp\u003e* Machined for stock or S\u0026amp;S EFI crank position sensor. Stock diameter only. \u003c\/p\u003e\n\u003cp\u003eProudly Made in the USA by S\u0026amp;S Cycle !\u003c\/p\u003e","brand":"S\u0026S","offers":[{"title":"Default Title","offer_id":48411941208286,"sku":"SS31-0052","price":3306.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/7951\/files\/SS31-0052.jpg?v=1783374931","url":"https:\/\/ironandresin.com.au\/products\/crankcase-assembly-with-3-1-2in-bore-black-fits-big-twin-1984-1991","provider":"Iron \u0026 Resin Garage","version":"1.0","type":"link"}